Signalment:2.4 kg, adult, neutered male ring-tailed lemur
History:The lemur was lethargic, inappetent, depressed, and developed a cough an hour before death. Two other lemurs in the colony exhibited similar signs and also died.
Gross Lesions:The liver was diffusely pale tan. The lungs were diffusely dark red and mildly heavy and wet (congestion and edema). Foamy fluid was within the trachea. A lymph node at the root of the mesentery was mildly enlarged, measuring 2x1.5x1 cm. The kidneys were diffusely dark purple. The abdominal cavity adipose tissue was mildly yellow.